Subtle colors and tonalities. Also like the layering of the ground vs the layering of the clouds. Well, maybe I'd be tempted to increase the contrast slightly in the top part to balance the layering, though not sure if that fits the overall "mood/feel" of the image.

Thanks everyone! OPGR - I thought the same, but when I tried it the top came to dominate the image and take away from the overall feel.(as you suspected it might). If I print this, I may try an "in between" approach and bring in just a bit more contrast or texture up top. Thanks for the insight

So here's the thing. I already DID get rid of some more prominent towers on the far right, but I left the much more subtle towers in the middle-left distance. I felt that the ones on the right were absolutely incongruent with the image, so I felt I *had* to remove them. The ones that remain, I felt did not sufficiently undermine the image as a whole and so I left them in the name of the "truthfulness" of the scene. Is it completely weird that I would feel that way despite having no problem taking out other, more prominent towers?